Weekly Oxaliplatin, High-Dose Folinic Acid and 24h-5-fluorouracil (FUFOX) as Salvage Therapy in Metastatic Colorectal Cancer Patients Pretreated with Irinotecan and Folinic Acid/5-Fluorouracil Regimens - Moehler, M; Hoffmann, T; Hildner, K; Siebler, J; Galle, P R; Heike, M (Zeitschrift für Gastroenterologie, 2002)